A dual-phase catalytic reaction-heterogeneous azeotropic distillation system and method

Abstract

The invention relates to a paraphase catalytic reaction-heterogeneous azeotropic distillation system and method. The paraphase catalytic reaction-heterogeneous azeotropic distillation system provided by the invention comprises a first storage tank, a first charging pump, a first metering tank, a first metering pump, a second metering pump, a second storage tank, a second charging pump, a second metering tank, a third metering pump, a fourth metering pump, a distillation tower, a first condenser, a quantizer, a third metering tank, a first reflux pump, a second reflux pump, a fourth metering tank, a fifth metering tank, a material pouring pump, a middle tank and a second condenser. According to the paraphase catalytic reaction-heterogeneous azeotropic distillation system provided by the invention, for reversible reaction and multi-component azeotropic systems in acetate series esters, the problems of long product separating an reefing processes, high energy consumption and high equipment investment, caused by phase equilibrium limitation, can be solved.

Description

technical field [0001] The invention relates to a dual-phase catalytic reaction-heterogeneous azeotropic distillation system and method, which belongs to the reaction strengthening technology in the field of chemical industry. Background technique [0002] In chemical production, reversible reactions and azeotrope separation processes are not uncommon, such as etherification, esterification, hydration and other processes. Due to the limitations of chemical equilibrium and phase equilibrium, these processes generally have low reaction conversion rates and complicated product separation and purification processes. , high energy consumption, and large investment in equipment. Catalytic distillation couples chemical reaction and product separation in a catalytic rectification tower. While performing chemical reaction, product separation is performed at the same time, so that the reversible reaction is always carried out in the direction of producing products, which greatly impro...

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Problems solved by technology

[0006] The invention provides a dual-phase catalytic reaction-heterogeneous azeotropic distillation system and method. The dual-phase catalytic reaction-heterogeneous azeotropic distillation system provided by the invention is aimed at reversible reactions and multi-components in the production of acetic acid series esters. Azeotropic system, focusing on solving the problems of long product separation and refining process, high energy consumption and large equipment investment due to phase equilibrium restrictions

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